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Abstract
Background: Personality has an important role in understanding both fibromyalgia syndrome (FMS) and major depressive disorder (MDD). Aims: This study considers the question that specific personality features may characterize depressed FMS patients. Materials and methods: To this end, 125 individuals were included in the study: 40 of them diagnosed with FMS+ MDD, 40 with MDD only and 45 healthy controls. Individual Beck Depression Inventory (BDI) and Personality Belief Questionnaire-Short Form (PBQ-SF) scores were compared between the three groups. Results: The mean scores for each personality domain of the PBQ-SF were the highest in the MDD group and the lowest mean scores appeared in the control group. Dependent personality and obsessive–compulsive personality scores were higher in the MDD group (t = 2.510, P = 0.014 and t = 2.240, P = 0.028, respectively) in comparison with the FM+ MDD group. However, this difference disappeared when PBQ-SF scores were controlled for depression severity. Conclusions: Although some common personality features are evident in FMS patients, it seems that the differences identified are primarily related to depression symptom severity.
Declaration of interest: The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.